BIOMETRIC AND PHYSIOLOGICAL CHARACTERISTICS OF CHRYSANTHEMUM (CHRYSANTHEMUM INDICUM L.) PLANTS GROWN AT DIFFERENT RATES OF NITROGEN FERTILIZATION

2003, 4 (1)   p. 1-6

V IVANOVA, A VASSILEV

Abstract

A trial with large the flowered chrysanthemum cultivar Dark Westland was carried out in an unheated greenhouse. Three rates of nitrogen fertilization were studied: 0, 100 and 140 kgN/ha, as well as two modes of plant formation – single- and two-stemmed plants. Parameters of the biometric characteristics, leaf gasexchange and leaf pigment content were determined. The best results about growth and decorative behaviour were achieved at nitrogen fertilization level of 100 kgN/ha. It was established that nitrogen fertilization in rates of 100 and 140 kgN/ha enhances photosynthetic rate in both modes of plant formation.

Keywords

chrysanthemum indicum l., nitrogen fertilization, poly-stem formatted plants, photosynthetic pigments

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